Observation of a narrow state decaying into Ξ+cπ-
Abstract
Using data recorded by the CLEO-II detector at Cornell Electron Storage Ring (CESR), we report the first observation of a narrow state decaying into Ξ+cπ-. The state has mass difference M(Ξ+cπ-)-M(Ξ+c) of 178.2+/-0.5+/-1.0 MeV/c2, and a width of <5.5 MeV/c2 (90% confidence level limit). The most likely explanation of this new state is that it is the Ξ*0c, the JP=3/2+ spin excitation of the Ξ0c charmed baryon.
- Publication:
-
Physical Review Letters
- Pub Date:
- December 1995
- DOI:
- 10.1103/PhysRevLett.75.4364
- arXiv:
- arXiv:hep-ex/9508010
- Bibcode:
- 1995PhRvL..75.4364A
- Keywords:
-
- 14.20.Lq;
- 13.30.Eg;
- 13.65.+i;
- Charmed baryons;
- Hadronic decays;
- High Energy Physics - Experiment
- E-Print:
- 12 page uuencoded postscript file, postscript file also available through http://w4.lns.cornell.edu/public/CLNS